Tuning joint for musical instruments



T, H. TUNING JOINT FOR MUSICAL INSTRUMENTS Filed June ll,' 1954 INVENTOR.

M V Ni Patented Apr. 7, 1936 2,036,356

UNITED STATES PATENT OFFICE TUNING JOINT FOR MUSICAL INSTRUMENTS Thomas H. Pedler, Elkhart, Ind., assignor to Harry Pedlcr & Co. Inc., Elkhart, Ind., a. corporation of Indiana Application June 11, 1934, Serial No. 730,042

3 Claims. (Cl. 84-382) This invention relates to wind musical instru reduced medial bore 4, the bore 2 being adapted ments, and particularly to reed musical instruto receive therein a clarinet body joint, and bore ments. 3 to receive the enlarged portion of the outer An object of the invention is to provide an sleeve of the tuning joint unit, as herein deimproved tuning joint for clarinets, or the like, scribed. 5 in which corrosion of certain working parts, re- The bore 4 of the body member I has the resulting from moisture accumulation, is obviated. duced tubular p on 5 0f the tu n J' t O e Another object is to provide an improved tunsleeve 6 detachably arranged therein, the outer ing joint for reed musical instruments in which en arged end 7 Of a d ve being disposed W o screws, and other now commonly used small in the body bore 3, as stated. The inner sleeve metal parts, are eliminated to obviate corrosion of the tuning J' y comprise the tubular thereof. portion 8 which slidably telescopes into the por- A third object is to provide means to prevent tion 5 of the outer sleeve, and which is provided frictional locking or binding between the inner with the enlarged end Section 9 having external Ii and outer sleeves of a tuning joint for reed musi- Screw th eads thereon. 5 cal instruments. The enlarged section I of the outer sleeve has Yet another object is to provide an improved a non-advancing ring-like adjusting nut r attuning joint for reed musical instruments whereably mou thereon y virtue of a a u in a single key carried by the inner of two sleeves flange nd ov Connection at I I (Fig- Said maintains both sleeves of the device against roadjusting nut being provided with the interior 2o tation. screw threads I2 which mesh with the exterior Other objects of the invention are mentioned threads on section 9 of the inner sleeve. Both and described herein. the inner and outer sleeves of the tuning joint The invention is illustrated in the accompanyare held against rotation within the body mem- 5 ing drawing, wherein her I by a spline key I3 rigid with the section 8 Figure 1 is a side elevation of the assembled f the inner e Said y extending longitudituning joint partially in section; nally of said section 8 and projecting through a Figure 2 illustrates a section taken on line 2-2 g u na Slot I4 formed in Section 5 0f the of Figure 1; outer sleeve, said key projecting slidably into Figure 3 illustrates a section taken on line 3-3 the longitudinal slot I5 formed in bore 4 of the 30 of Figure 1; body member I. To admit the disposition of the Figure 4 is a longitudinal section taken through Spline ey l3 into y Slot l5 the d Wa l "5 the body of the tuning joint; of section I of the outer sleeve 6 is radially aper- Figure 5 illustrates a section taken on line 55 red at of Figure 4; It will be evident from the foregoing that rota- 35 Figure 6 illustrates a longitudinal or side view tien 0f the adjusting nut Which has a p of the assembled inner and outer sleeves and ta y groove and annular flange Connection their associated parts; with the outer sleeve section I and which is in Figure 7 illustrates alongitudinal sectional view Sc ew th ad engagement W h t e S ction 9 0f of the outer sleeve of the tuning joint with the the inner sleeve, will effect lengitudinal p adjusting nut mounted thereon; cal movement of the latter within the outer sleeve Figure 8 illustrates a section taken on line 8-8 6, and that the slidable key I3 prevents rotation of of Figure 7; both the inner and outer sleeves of the tuning Figure 9 illustrates an exterior longitudinal joint unit when the inner sleeve is actuated.

view of the tuning joint inner sleeve partially The bore I8 of the inner sleeve section 9 is 45 broken away; and adapted to function as a socket for the reed bear- Figure 10 illustrates a section taken on line ing mouthpiece, as is well known in the art, and

Ill-I ll of Figure 9. the outer end of said sleeve section 9 may be pro- Similar numerals of reference indicate like vided with an annular stop flange I9. The nuparts throughout the several views on the drawmeral 20 indicates a thin washer loosely encom- 50 ing. passing the section 9 of the inner sleeve, said Referring to the details of the drawing the nuwasher functioning to prevent frictional cohermeral I indicates a tuning joint body, which may ence, or binding, between the flange I9 and the be either metal or non-metallic, and which is adjusting nut I0 when the inner sleeve is actuated provided with the two end bores 2 and 3 and a inward to the limit of its travel. The use of the 55 washer 20 also prevents frictional coherence between the end walls of the sleeve sections 9 and 1, by spacing them apart slightly, when the inner sleeve is positioned at the limit of its inward movement.

It will be evident too from the foregoing that the socket section 9 of the inner sleeve is wholly free from screw holes, or other apertures of any sort which might admit moisture therethrough from the mouthpiece mounted therein, to small screws, now in common use in the assembly of devices of this character and subject to corrosion from moisture; and that the use of the key I3, in the manner shown and described, not only wholly eliminates small parts and screws subject to corrosion but also enhances both the efficiency and durability of the tuning joint unit.

I claim:-

1. In a tuning joint for musical instruments the combination of inner and outer telescoping sleeves, the inner sleeve being reciprocable in relation to the outer sleeve, said outer sleeve carrying a rotary adjusting nut for actuating said inner sleeve, and said inner sleeve being provided with an end flange, and a washer loosely mounted on said inner sleeve between said end flange and said adjusting nut.

2. A tuning joint for reed musical instruments comprising a tubular body, a stationary outer sleeve mounted within said body and provided with a socket at its outer end, an inner sleeve slidably telescoping into said stationary sleeve and provided with a mouthpiece socket arranged within the outer sleeve socket, a non-advancing ring-like rotary adjusting nut mounted on said stationary sleeve socket exterior, a complementary spiral connection between said adjusting nut and said inner sleeve mouthpiece socket, and means to prevent frictional coherence between said inner and outer sleeves when the former is positioned at the limit of its travel.

3. A tuning joint for reed musical instruments comprising a tubular body provided with a longitudinal key slot in the bore thereof, a stationary outer sleeve member mounted within said body member and provided with a longitudinal key slot which registers with said body key slot, an inner sleeve member slidably telescoping into said stationary outer sleeve and provided with a key which projects through the slot in said outer sleeve into the body member key slot, a nonadvancing ring-like rotary adjusting nut mounted on said stationary outer sleeve, and a complementary spiral connection between said adjusting nut and the inner sleeve member.

THOMAS H. PEDLER. 

